大家看看这个词组,有点难
问题描述：
大家看看这个词组,有点难
that suggests that DPP(专有词汇） can work. However, their research was more focused on DXP(专有词汇,DPP是DXP的一个部分), and provides only anecdotal evidence that DPP is effective.
anecdotal evidence 这里翻译怎么翻译好（注：相关研究大多为实验研究）,请大家多帮忙
答
non-scientific observations or studies,which do not provide proof but may assist research efforts
英文解释倒是很详细
翻成中文的话
观察的证据,传闻,非官方证明